EHS17 Audio Details Technical Specifications Swivel Style Earpiece (Receive Only)Ergonomically designed swivel earpiece (Receive only). 2.5mm jack plug.Find a dealerHighlightsFunctionsTechnical SpecificationsSpeaker sensitivity 115dB ± 3dB @ 1KHz, rated power 50mW, maximum power 100mW, impedance 150Ω± 15% @1KHzRelated Products PD662i UL913 PD682i UL913 PD602i UL913 PD502i UL913